I've seen quite a few posts on the video4linux list from people complaining that they have to either set their HUE to 0% or 100% in order to get realistic colors on their cx88 cards. In an effort to help in solving this problem, I am trying to compile a list of the various cards and the "best" settings that people are using to get a decent picture. Based on the contents of this list, hopefully a decision will be made as to how to deal with this problem once and for all.

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{{Note|This problem was corrected in the source code of the cx88 driver module as of Wed Jun 29 2005}}

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==Original Bug==

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I've seen quite a few posts on the video4linux list from people complaining that they have to either set their HUE to 0% or 100% in order to get realistic colors on their [[cx88 devices (cx2388x)|cx88 cards]]. In an effort to help in solving this problem, I am trying to compile a list of the various cards and the "best" settings that people are using to get a decent picture. Based on the contents of this list, hopefully a decision will be made as to how to deal with this problem once and for all.

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Please add to this list the settings that you use for your card. Even if your card works correctly out-of-the-box, I'd still like to hear about it. I'm trying to get as close to an all-inclusive list as possible, so please submit your settings. I will be posting the compiled list at http://techsounds.org/linux/cx88/bestsettings/

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Please add to this list the settings that you use for your card. Even if your card works correctly out-of-the-box, I'd still like to hear about it. I'm trying to get as close to an all-inclusive list as possible, so please submit your settings. I will be posting the compiled list at http://techsounds.org/linux/cx88/bestsettings/ after enough people have responded. Don't bother going to the web site right away -there's nothing there yet!

Please provide the following:

Please provide the following:

Line 7:

Line 11:

# system ID and subsystem ID (you can find this in lspci -vn)

# system ID and subsystem ID (you can find this in lspci -vn)

# video standard used.

# video standard used.

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# COLOR setting.

# HUE setting.

# HUE setting.

# CONTRAST setting.

# CONTRAST setting.

# BRIGHTNESS setting.

# BRIGHTNESS setting.

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# COLOR / SATURATION setting.

# (optional) Any comments that you may have, i.e. applications these settings worked well under, kernel / v4l version, etc.

# (optional) Any comments that you may have, i.e. applications these settings worked well under, kernel / v4l version, etc.

We have determined that the hue problem is common to all [[cx88 devices (cx2388x)|cx88 boards]], since nobody has reported correct hue functionality out-of-the-box. This problem has been corrected in the cx88 driver as of the CVS commit on Wed Jun 29 16:28:17 2005 UTC. '''Note''': If you had previously set your HUE setting to either 0% or 100% in order to remedy the original bug, you will notice that the hue is all messed up again after fetching the latest CVS. Please correct this on your system by setting the HUE back to 50% to accommodate the fix. If, however, this change produces unexpected results with your setup, please let us know.

Latest revision as of 19:15, 7 December 2008

Note: This problem was corrected in the source code of the cx88 driver module as of Wed Jun 29 2005

Original Bug

I've seen quite a few posts on the video4linux list from people complaining that they have to either set their HUE to 0% or 100% in order to get realistic colors on their cx88 cards. In an effort to help in solving this problem, I am trying to compile a list of the various cards and the "best" settings that people are using to get a decent picture. Based on the contents of this list, hopefully a decision will be made as to how to deal with this problem once and for all.

Please add to this list the settings that you use for your card. Even if your card works correctly out-of-the-box, I'd still like to hear about it. I'm trying to get as close to an all-inclusive list as possible, so please submit your settings. I will be posting the compiled list at http://techsounds.org/linux/cx88/bestsettings/

Please provide the following:

card name, card number, tuner name, tuner number.

system ID and subsystem ID (you can find this in lspci -vn)

video standard used.

HUE setting.

CONTRAST setting.

BRIGHTNESS setting.

COLOR / SATURATION setting.

(optional) Any comments that you may have, i.e. applications these settings worked well under, kernel / v4l version, etc.

Thank you

User Submitals

Card:

System ID:

SubSystem:

Tuner:

Video Standard:

hue

contrast

brightness

color / saturation

(1) Hauppauge WinTV 34xxx

14f1:8800

0070:3401

(38) PHILIPS FM1216ME MK3

PAL-I

100%

18%

58%

82%

(9) Leadtek PVR 2000

107d:6620

(38) PHILIPS FM1216ME MK3

0%

25%

60%

50%

I use a lcd display, which may explain the need for more brightness

(12) ASUS PVR-416

14f1:8800

1043:4823

(43) PHILIPS FM1236 MK3

NTSC

0%

33%

50%

50%

hue: - same results from both 0% and 100%

(22) pcHDTV HD3000 HDTV

14f1:8800

7063:3000

(52) Thomson DDT 7610 (ATSC/NTSC)

NTSC

100%

21%

75%

48%

hue: 100% (0% looks the same to me; 50% has green-blue swapped)

(25) Digital-Logic MEC

14f1:0342

(38) PHILIPS FM1216ME MK3

0%

25%

60%

50%

I use a lcd display, which may explain the need for more brightness

(27) Pixelview PlayTV Pro Ultra

14f1:8800

0000:0000

(59) Ymec Tvision TNF-5533/MF

PAL/M

0% or 100%

63%

25%

65%

Sometimes, low intensity colors become B&W

(28) DViCO FusionHDTV3 Gold-T

14f1:8800

18ac:d820

(60) Thomson DDT 7611 (ATSC/NTSC)

NTSC

0%

33%

50%

50%

hue: - same results from both 0% and 100%

Problem Fixed

We have determined that the hue problem is common to all cx88 boards, since nobody has reported correct hue functionality out-of-the-box. This problem has been corrected in the cx88 driver as of the CVS commit on Wed Jun 29 16:28:17 2005 UTC. Note: If you had previously set your HUE setting to either 0% or 100% in order to remedy the original bug, you will notice that the hue is all messed up again after fetching the latest CVS. Please correct this on your system by setting the HUE back to 50% to accommodate the fix. If, however, this change produces unexpected results with your setup, please let us know.